▎ 摘 要
NOVELTY - A volcanic rock composition board is prepared by raw materials comprising 100-110 pts. wt. lava, 10-15 pts. wt. graphene, 2-5 pts. wt. potassium permanganate, 30-50 pts. wt. urea-formaldehyde resin adhesive, 1-2 pts. wt. phosphogypsum, 1-2 pts. wt. straw and 0.1-0.2 pt. wt. residue. USE - Volcanic rock composition board. ADVANTAGE - The board is lightweight and has excellent performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of the volcanic rock composition board.